Home / 120,563,535.69-180,617,115.58-71,231,861.48

Finding the Fourth Proportional to 120,563,535.69, 180,617,115.58 and 71,231,861.48

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Solution

The fourth proportional to 120,563,535.69, 180,617,115.58 and 71,231,861.48 is: 106,712,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,563,535.69 : 180,617,115.58 = 71,231,861.48 : x
  2. Step 2: Convert to fraction form
    120,563,535.69/180,617,115.58 = 71,231,861.48/x
  3. Step 3: Cross multiply
    120,563,535.69x = 180,617,115.58 × 71,231,861.48
  4. Step 4: Simplify right side
    120,563,535.69x = 12,865,693,356,830,542
  5. Step 5: Solve for x
    x = 12,865,693,356,830,542/120,563,535.69
  6. Step 6: Final answer
    x = 106,712,973.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.